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Re: Are there any shops that still work on/specialize in Yaesu FT-101E repair/restoration, and/or instructional videos?

 

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Paul Harrold does top notch work and focuses on only the FT-101 series:



Good luck,

Richard kn7sfz


On 6/10/2023 7:44 AM, heraldranch777@... wrote:

My title kinda says it all:

Are there any shops that still work on/specialize in Yaesu FT-101E repair/restoration?

I purchased a Yaesu FT-101E with a FL-2100 yesterday for $200.? The radio appears to work on all bands.? I do not know much at all about this world famous radio.? And I am not even sure how to work the FL-2100.

Are their any good instructional videos?

Thank you,


AJ6XW
Are there any shops that still work on/specialize in Yaesu FT-101E repair/restoration, and/or instructional videos?

[email protected]
 

My title kinda says it all:

Are there any shops that still work on/specialize in Yaesu FT-101E repair/restoration?

I purchased a Yaesu FT-101E with a FL-2100 yesterday for $200.? The radio appears to work on all bands.? I do not know much at all about this world famous radio.? And I am not even sure how to work the FL-2100.

Are their any good instructional videos?

Thank you,


AJ6XW
FT-101E signal level at RF out RCA jack

 

When connecting an RF probe to the driver RF out RCA jack in the rear of the FT-101E, does anyone know what voltage should be present?

I was wondering what signal level the finals are expecting to receive from the driver.

And can monitoring this level be used to peak the xmit trimmers without the final heaters on or is power out from the finals the best way?

Thanks,

Richard kn7sfz
FT-101E mica hv caps

 

Hello all,
I have an ft-101e that I have recapped all the electrolytics and it now receives ok.? The finals are rca 6js6c's.? The tubes have been checked and are good but I want to know about the brown square caps in the hv tube section.? I've read that its important to change them before turning on the heater switch or doing any alignment. ? Looking at the manual it shows c13,c104,c125,c11 and c23 from the main chassis parts list.? Should all these be replaced???? What caps are you guys using for replacements?? Does anyone have a digi-key parts list for the correct caps?
Thanks, de gregr/ka9vdu
Re: Where to start?

 

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On 29 Apr 2023, at 15:16, Reginald Beardsley via groups.io <pulaskite@...> wrote:

?
I don't use social media. :-(


On Saturday, April 29, 2023, 01:51:14 PM CDT, Richard kn7sfz <kn7sfz@...> wrote:


Definitely join the FT-101 group on Facebook...they have been of great value in helping me with my 101EX.




Richard kn7sfz



On 4/28/2023 5:06 PM, Reginald Beardsley via groups.io wrote:
Hi,I bought an FT-101E "for parts or repair" on ebay.  It's not here yet, but I need to start collecting data, manuals, etc.I bought an FGR-7 a few years ago which I completely realigned and corrected the fine tune, but did not do a recap.I've got a very well equipped lab and enough experience to not be concerned about anything other than availability of parts and data.  I also have a TS-520 to pick up at the PO tomorrow.  So I have a pair of late 70's hybrid analog radios to recondition.Thanks,Reg

Re: Where to start?

 

I don't use social media. :-(


On Saturday, April 29, 2023, 01:51:14 PM CDT, Richard kn7sfz <kn7sfz@...> wrote:


Definitely join the FT-101 group on Facebook...they have been of great value in helping me with my 101EX.




Richard kn7sfz



On 4/28/2023 5:06 PM, Reginald Beardsley via groups.io wrote:

Hi,I bought an FT-101E "for parts or repair" on ebay.  It's not here yet, but I need to start collecting data, manuals, etc.I bought an FGR-7 a few years ago which I completely realigned and corrected the fine tune, but did not do a recap.I've got a very well equipped lab and enough experience to not be concerned about anything other than availability of parts and data.  I also have a TS-520 to pick up at the PO tomorrow.  So I have a pair of late 70's hybrid analog radios to recondition.Thanks,Reg

Re: Where to start?

 

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Definitely join the FT-101 group on Facebook...they have been of great value in helping me with my 101EX.




Richard kn7sfz



On 4/28/2023 5:06 PM, Reginald Beardsley via groups.io wrote:

Hi,

I bought an FT-101E "for parts or repair" on ebay.  It's not here yet, but I need to start collecting data, manuals, etc.

I bought an FGR-7 a few years ago which I completely realigned and corrected the fine tune, but did not do a recap.

I've got a very well equipped lab and enough experience to not be concerned about anything other than availability of parts and data.  I also have a TS-520 to pick up at the PO tomorrow.  So I have a pair of late 70's hybrid analog radios to recondition.

Thanks,
Reg

Where to start?

 

Hi,

I bought an FT-101E "for parts or repair" on ebay. It's not here yet, but I need to start collecting data, manuals, etc.

I bought an FGR-7 a few years ago which I completely realigned and corrected the fine tune, but did not do a recap.

I've got a very well equipped lab and enough experience to not be concerned about anything other than availability of parts and data. I also have a TS-520 to pick up at the PO tomorrow. So I have a pair of late 70's hybrid analog radios to recondition.

Thanks,
Reg

Re: 42 years for a dry joint from manufacturing to cause a problem!

 

Perhaps I can beat your 42 years now Gordon!.

I've just had another dry joint on my early FT-101 (FT-277) fail after almost 52 years.
I had been working on the radio on the bench and was just doing checks before putting the covers back on and had no Tx output. The meter on Ic went full scale hard against the end stop. The meter shunt had become detached from the finals socket and so the cathode current was flowing through the meter and not the shunt. The shunt had obviously been soldered but it was probably not a well-made joint and after many years of getting warm and then cooling down had caused the joint to fail. It has now been resoldered and should last another 50+ years!

73,

Peter

Re: FT-101 deaf above 40m

 

Update - I’ve replaced the 20m crystal and it’s now working well!?

I have a question though. I’ve been aligning the clarifier and the tx/rx with the Zero adjust. I noticed all the guides online show the voltage around 3.5-3.8v at the clarifier input. Mine is 1.6v?? Could there be an issue on the rectifier board?? I managed to align tx and rx but it was very tight with the zero adjustment almost fully clockwise!?

Re: FT-101 deaf above 40m

Nigel jones 2E0NJT
 

To all

The moderator Roger has found a better quality copy of the article for the dmm connected rf voltmeter and has posted it in the files section, i have therefore removed the un needed photos of the article to save some memory in the forum.

nigel?

Added album Rf tester for dmm #photo-notice

Group Notification
 

Nigel jones 2E0NJT <nigel-jones@...> added the album Rf tester for dmm

Re: FT-101 deaf above 40m

Nigel jones 2E0NJT
 

Richard

check out the photos section for “ rf tester for dmm” i have uploaded an adaptor you could build to give you the test results you need.

nigel

Added Folder /Rf adaptor for dmm #file-notice

Group Notification
 

Nigel jones 2E0NJT <nigel-jones@...> added folder /Rf adaptor for dmm

Re: FT-101 deaf above 40m

 

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On 4/16/2023 12:36 AM, Carl wrote:

Richard thanks.?

No I don’t have any test equipment other than other radios receivers, DMM (not much use here) etc. I used a nanovna as a signal generator for the other bands alignment and that went well, I was able to peak the signal from that. I understand not having the correct test equipment isn’t ideal, but the way I’ve aligned it so far has improved the other bands sensitivity.


Would building an rf probe for my DMM be useful?


Yes, by all means and there are plenty of YouTube videos on how to do that.? You can also use the probe with an analog voltmeter if that's all you have.? The manual wants you to shoot for 300mv injection at the test point on the RF board for each band when you adjust the oscillator trimmers.? I have noticed that the receiver sensitivity doesn't seem to drop off until the injection drops below 200mv.? At least with the extra receiver, you can determine that each xtal is operating at its design frequency and detect a dead one.? Mine has been on the bench for weeks and I work on it as time permits, loving the learning experience!

Richard


Thanks.?


Re: FT-101 deaf above 40m

 

Richard thanks.?

No I don’t have any test equipment other than other radios receivers, DMM (not much use here) etc. I used a nanovna as a signal generator for the other bands alignment and that went well, I was able to peak the signal from that. I understand not having the correct test equipment isn’t ideal, but the way I’ve aligned it so far has improved the other bands sensitivity. Would building an rf probe for my DMM be useful??


Thanks.?

Re: FT-101 deaf above 40m

 

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Hi Carl,

As you've already discovered, the caps have just the two connections.? The right side is the rotor connected to ground.? The small lead on the left connects the stator to the xtal.? Three of mine failed with the solder bridge connecting the rotor screw to the rotor plate breaking loose, rendering them useless.? I was not successful in reheating the solder.

I'm presently experimenting with using the inexpensive plastic trimmers to replace the ceramic ones.? They are available on Amazon, Ebay, etc.? Each one needs to be verified with a capacitor tester.?

Do you have an RF probe connected to the RF board test port so you can monitor the oscillator signal level?

Good luck and keep us updated on your progress!

Richard kn7saf




On 4/15/2023 10:41 AM, Carl wrote:

Thanks Tony, this is what I suspected. I’ve ordered one off eBay so fingers crossed it’s a working one and it solves the problem. TC18 also shattered when I was attempting to tune the crystal (symptoms were already present) so I’ve ordered a used board to swap that out. Does anyone know of a good new replacement? I see plenty of ceramic Chinese trimmers but all of them seem to be two leg instead of 3. Or does that not matter???


Re: FT-101 deaf above 40m

 

Ah yes noticed on the schematic, thanks.?


No 20 meters wasn’t working before. I tried adjusting TC18 during the alignment and first found it did nothing, then broke completely.?

Re: FT-101 deaf above 40m

 

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Carl,

?

With the 3 leg trimmers, 2 legs are the same connection, the other is the variable connection.

?

Was the 20m receiving before you tried adjusting T18?

?

?

?

Regards,

?

TF

?

From: Carl
Sent: April 15, 2023 10:41 AM
To: [email protected]
Subject: Re: [Yaesu-FT-101] FT-101 deaf above 40m

?

Thanks Tony, this is what I suspected. I’ve ordered one off eBay so fingers crossed it’s a working one and it solves the problem. TC18 also shattered when I was attempting to tune the crystal (symptoms were already present) so I’ve ordered a used board to swap that out. Does anyone know of a good new replacement? I see plenty of ceramic Chinese trimmers but all of them seem to be two leg instead of 3. Or does that not matter???

?

4FC1F7E3A8E042ACAFA948CF6FF67401.png

Re: FT-101 deaf above 40m

 

Thanks Tony, this is what I suspected. I’ve ordered one off eBay so fingers crossed it’s a working one and it solves the problem. TC18 also shattered when I was attempting to tune the crystal (symptoms were already present) so I’ve ordered a used board to swap that out. Does anyone know of a good new replacement? I see plenty of ceramic Chinese trimmers but all of them seem to be two leg instead of 3. Or does that not matter???

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